Plan your trip so you're not in big city's or around them. Or stop before or after. In 10 months I've had. 2 people but non knocked on my door. Actually I had the "Knock off jeweler" with a fake 2,000 tagged ring I've ever seen. Even a blind man could tell that #### was not real. Then I had 1 crack head in Cincinnati walk up while I was waiting to be loaded at Sam adams. They take the trailers in and you wait at a drop yard. She asked for change I said I only carry plastic cards sorry. And she left me alone. Other then that nothing, shoot I haven't even seen a lot lizard yet.
Haven't had anyone knock on my door in a very long time. I think the fact that I usually drive at night and sleep during the day probably helps a lot. As far as the beggars go, I also tell them I don't carry cash.